The MXS 3.8 is an advanced battery charger with maintenance charging functionality. It features adjustable programs to accommodate different battery sizes, as well as special programs for desulfation and charging in cold environments.

The MXS 3.8 is a 7-stage, microprocessor-controlled charger with maintenance charging capability for batteries ranging from 1.2 Ah to 85 Ah. Its features include a battery diagnosis that determines whether the battery can accept and hold a charge, a patented desulfation program, and a "snowflake" program for charging in cold conditions. It also includes adjustable programs for charging smaller and standard batteries.

The MXS 3.8 utilizes CTEK's patented Float/Pulse system. This is the most efficient maintenance charging mode when a battery remains connected to the charger for an extended period. The MXS 3.8 is easy to use, and the entire charging process can be monitored via the clear, easy-to-read display.